Results 231 to 240 of about 5,919,756 (285)

Seven quinic acid gallates from quercus stenophylla

Phytochemistry, 1984
Abstract A chemical investigation of the bark of Quercus stenophylla has led to the isolation and characterization of all of the possible structural isomers of quinic acid gallates; 3- O -, 4- O -, 5- O -, 3,4-di- O -, 3,5-di- O -, 4,5-di- O - and 3,4,5-tri- O -galloylquinic acids.
Hiroaki Nishimura, Gen-Ichiro Nonaka, Itsuo Nishioka   +2 more
openaire   +1 more source

Quinic and shikimic acids in fruits

Qualitas Plantarum et Materiae Vegetabiles, 1958
There are relatively large amounts of quinic acid in young apples and small amounts of shikimic acid in senescent apples. The possible significance of these acids in the biosynthesis of the aromatic ring is discussed. The widespread occurrence of varying amounts of these acids in edible fruits (pears, gooseberries, blackberries, strawberries, cherries,
openaire   +1 more source

Synthesis of aminocyclitols from l-quinic acid

Carbohydrate Research, 1980
Abstract A variety of 1,3-diamino and 1,4-diaminocyclitols, manoaminocyclitols, and triaminocyclohexanol have been synthesized starting with the chiral ketone intermediate, 2, derived from l -quinic acid. Reduction of 2 with lithium borohydride afforded two epimeric diols (4 and 5), both of which were transformed by straight-forward but distinctly ...
Lila Castellanos, Jeanine Cléophax, Claudine Colas, Stephan D. Gero, Jean Leboul, Daniel Mercier, Alain Olesker, Alain Rolland, Béatrice Quiclet-Sire, Anne-Marie Sepulchre   +9 more
openaire   +1 more source

Sialyltransferase Inhibitors Based on CMP-Quinic Acid

European Journal of Organic Chemistry, 2000
Quinic acid was transformed into phosphitamides 16, 25, and 36, which could be readily linked to 5′-O-unprotected cytidine derivative 17. Ensuing oxidation of the obtained phosphite triesters with tBuO2H and hydrogenolytic de-O-benzylation furnished the corresponding phosphate diesters 18, 26, and 38. Base catalyzed removal of acetyl protecting groups,
Christoph Schaub, Bernd Müller, Richard R. Schmidt   +2 more
openaire   +1 more source

Chlorogenic and quinic acids in sunflower meal

Journal of the Science of Food and Agriculture, 1968
AbstractChlorogenic and quinic acids were isolated from the kernel of sunflower seed by column chromatography and identified by paper chromatography. Ultra‐violet and infra‐red spectra of the above acids were compared with those of pure preparations. The contents of both acids in the kernel and hull of sunflower seeds were determined and the conversion
B. Milić, S. Stojanović, N. Vučurević, M. Turčić   +3 more
openaire   +1 more source

REPLACEMENT REACTIONS IN THE QUINIC ACID SERIES

Canadian Journal of Chemistry, 1963
The action on D-quinic acid of hot 95% acetic acid containing mineral acid gave, after complete acetylation, 1,4,5-tri-O-acetyl-epi-quinide consisting of approximately equal portions of the (−)- and (±)-isomers, and tetra-O-acetyl-scyllo-quinic acid. The stereochemistry of the products and their derived free polyols were determined by nuclear magnetic
openaire   +1 more source

QUINIC ACID COMPOSITION IN ACTINIDIA

Acta Horticulturae, 2007
K.B. Marsh, H.L. Boldingh, C.H. Cheng
openaire   +1 more source

Quinic acid derivatives from Pimpinella brachycarpa

Planta Medica, 2012
SY Lee, JE Park, E Moon, SY Kim, KR Lee
openaire   +1 more source

Bile acids and the gut microbiota: metabolic interactions and impacts on disease

Nature Reviews Microbiology, 2022
Stephanie Collins, Andrew D Patterson
exaly  

Quinic acid inhibits vascular inflammation in TNF-α-stimulated vascular smooth muscle cells.

Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie, 2017
S. Jang, D. Park, J. Kwon, H. Song, BongKyun Park, Hyelin Jeon, E. Sohn, H. Koo, S. Kang   +8 more
semanticscholar   +1 more source